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https://github.com/libretro/RetroArch
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d88d0d5219
Loading the last used disc for multi-disc content was automatic. However, in some cases it is not wanted, as described in #16018 Option is added for controlling the function. Disabling the option will also implicitly disable index saving.
259 lines
6.5 KiB
C
259 lines
6.5 KiB
C
/* Copyright (C) 2010-2020 The RetroArch team
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*
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* ---------------------------------------------------------------------------------------
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* The following license statement only applies to this file (disk_control_interface.h).
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* ---------------------------------------------------------------------------------------
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*
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* Permission is hereby granted, free of charge,
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* to any person obtaining a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __DISK_CONTROL_INTERFACE_H
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#define __DISK_CONTROL_INTERFACE_H
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#include <retro_common_api.h>
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#include <libretro.h>
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#include <boolean.h>
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#include "disk_index_file.h"
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RETRO_BEGIN_DECLS
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/* Holds all objects to operate the disk
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* control interface */
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typedef struct
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{
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struct retro_disk_control_ext_callback cb; /* ptr alignment */
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disk_index_file_t index_record; /* unsigned alignment */
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unsigned initial_num_images;
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bool record_enabled;
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} disk_control_interface_t;
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/*****************/
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/* Configuration */
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/*****************/
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/**
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* disk_control_set_callback:
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*
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* Set v0 disk interface callback functions
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**/
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void disk_control_set_callback(
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disk_control_interface_t *disk_control,
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const struct retro_disk_control_callback *cb);
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/**
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* disk_control_set_ext_callback:
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*
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* Set v1+ disk interface callback functions
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**/
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void disk_control_set_ext_callback(
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disk_control_interface_t *disk_control,
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const struct retro_disk_control_ext_callback *cb);
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/**********/
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/* Status */
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/**********/
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/**
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* disk_control_enabled:
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*
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* Leaf function.
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*
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* @return true if core supports basic disk control functionality
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* - set_eject_state
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* - get_eject_state
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* - get_image_index
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* - set_image_index
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* - get_num_images
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**/
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bool disk_control_enabled(
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disk_control_interface_t *disk_control);
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/**
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* disk_control_append_enabled:
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*
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* Leaf function.
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*
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* @return true if core supports disk append functionality
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* - replace_image_index
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* - add_image_index
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**/
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bool disk_control_append_enabled(
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disk_control_interface_t *disk_control);
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/**
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* disk_control_image_label_enabled:
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*
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* Leaf function.
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*
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* @return true if core supports image labels
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* - get_image_label
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**/
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bool disk_control_image_label_enabled(
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disk_control_interface_t *disk_control);
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/**
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* disk_control_initial_image_enabled:
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*
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* Leaf function.
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*
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* @return true if core supports setting initial disk index
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* - set_initial_image
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* - get_image_path
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**/
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bool disk_control_initial_image_enabled(
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disk_control_interface_t *disk_control);
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/***********/
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/* Getters */
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/***********/
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/**
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* disk_control_get_eject_state:
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*
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* @return true if disk is currently ejected
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**/
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bool disk_control_get_eject_state(
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disk_control_interface_t *disk_control);
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/**
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* disk_control_get_num_images:
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*
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* @return number of disk images registered by the core
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**/
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unsigned disk_control_get_num_images(
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disk_control_interface_t *disk_control);
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/**
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* disk_control_get_image_index:
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*
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* @return currently selected disk image index
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**/
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unsigned disk_control_get_image_index(
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disk_control_interface_t *disk_control);
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/**
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* disk_control_get_image_label:
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*
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* Fetches core-provided disk image label
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* (label is set to an empty string if core
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* does not support image labels)
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**/
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void disk_control_get_image_label(
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disk_control_interface_t *disk_control,
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unsigned index, char *label, size_t len);
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/***********/
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/* Setters */
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/***********/
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/**
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* disk_control_set_eject_state:
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*
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* Sets the eject state of the virtual disk tray
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**/
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bool disk_control_set_eject_state(
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disk_control_interface_t *disk_control,
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bool eject, bool verbosity);
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/**
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* disk_control_set_index:
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*
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* Sets currently selected disk index
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*
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* NOTE: Will fail if disk is not currently ejected
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**/
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bool disk_control_set_index(
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disk_control_interface_t *disk_control,
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unsigned index, bool verbosity);
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/**
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* disk_control_set_index_next:
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*
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* Increments selected disk index
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**/
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bool disk_control_set_index_next(
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disk_control_interface_t *disk_control,
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bool verbosity);
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/**
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* disk_control_set_index_prev:
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*
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* Decrements selected disk index
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**/
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bool disk_control_set_index_prev(
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disk_control_interface_t *disk_control,
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bool verbosity);
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/**
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* disk_control_append_image:
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*
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* Appends specified image file to disk image list
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**/
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bool disk_control_append_image(
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disk_control_interface_t *disk_control,
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const char *image_path);
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/*****************************/
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/* 'Initial index' functions */
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/*****************************/
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/**
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* disk_control_set_initial_index:
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*
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* Attempts to set current core's initial disk index.
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* > disk_control->record_enabled will be set to
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* 'false' if core does not support initial
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* index functionality
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* > disk_control->index_record will be loaded
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* from file (if an existing record is found)
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* NOTE: Must be called immediately before
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* loading content
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**/
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bool disk_control_set_initial_index(
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disk_control_interface_t *disk_control,
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const char *content_path,
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const char *dir_savefile);
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/**
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* disk_control_verify_initial_index:
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*
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* Checks that initial index has been set correctly
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* and provides user notification.
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* > Sets disk_control->initial_num_images if
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* if functionality is supported by core
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* NOTE: Must be called immediately after
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* loading content
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**/
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bool disk_control_verify_initial_index(
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disk_control_interface_t *disk_control,
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bool verbosity,
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bool enabled);
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/**
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* disk_control_save_image_index:
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*
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* Saves current disk index to file, if supported
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* by current core
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**/
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bool disk_control_save_image_index(
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disk_control_interface_t *disk_control);
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RETRO_END_DECLS
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#endif
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